20191209每日一句
Don't bother just to be better than your contemporaries or predecessors. Try to be better than yourself.
不要只是费心去超越你的同辈或前辈，要试图超越你自己。
Yesterday is history, tomorrow is a mystery, and today is a gift.
昨日之日不可留，明日之日未可知，今日之日胜礼物
Don't be afraid to try new things.